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        <td class="header">&nbsp; Create Elevation</td>
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<h3>Create Elevation Operator</h3>

<p>The Create Elevation Operator allows you to add an elevation band to product
    from within the Graph Processing.

</p>

<p>The altitudes are computed by looking up each pixel in a selected high-resolution
    DEM.</p>

<p>The <a href="../readers/ImportSRTM.html">SRTM</a> 90m DEM and <a href="../visat/GETASSE30ElevationModel.html">GETASSE30</a>
    DEM will be automatically downloaded in tiles as
    needed. For&nbsp;<a href="../readers/ImportACE.html">ACE</a> and <a href="../readers/ImportASTER.html">ASTER</a>
    DEMs, you will need to download datasets
    yourself and have the respective path in the<a href="../visat/SettingsDialog.html">
        settings dialog</a> point to the location of the datasets.</p>

<p>Note: The <a href="RangeDopplerGeocodingOp.html">Terrain Correction</a> Operator
    will use DEMs directly and you do not need to create an elevation before Terrain
    Correction.
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